I'm waiting for a document from you for a long time. We are very often blamed customer from mailing to several times, and then passing by fast ferry, with delayed mail.
I'm waiting for you to edit documents from a very long time. We often blame the client from sending mail to many times to help as soon as possible and delay the mail boat.
I am waiting for editing a document from you for a long time. We blame from the customer very often send many times help to the most urgent mail boat with delay.